446.01 Description. This work consists of constructing a surface course or an intermediate course of aggregate and asphalt binder mixed in a central plant and spread and compacted on a prepared surface. The Department will base acceptance of the compacted mixture in place on the level of density attained as sampled by the Contractor and analyzed by the Department.
The requirements of Item 441 apply, except as modified by this specification.
446.02 JMF Field Adjustments. Determine the need for any JMF gradation adjustments, provided for in 441.05, in the first 3 days or first 3000 tons (3000 metric tons) of production, whichever comes last. Give the DET written notice of JMF adjustments no later than the end of the following day’s production.
For projects smaller than the above JMF field adjustment period give the DET written notice of any JMF gradation adjustments within 1 workday following the last day of production.
446.03 Monitoring. If there is poor comparison between the Department’s comparison samples and the Contractor’s quality control tests, the Monitoring Team may at any time disallow production to continue under Item 446. In this case, conform to Items 448 and 446. The Department will notify the Contractor in writing to stop production.
446.04 Reports. Submit the Quality Control Report according to 441.11 on the workday following the production day of the material represented by the report.
446.05 Density Acceptance. Use compaction equipment meeting the requirements of 401.13 or other types acceptable to the Director. A three-wheel roller is not required.
Obtain 10 cores for the Department to test to determine the in-place density of the compacted mixture as a percentage of the average Maximum Specific Gravity (MSG) for the production day the material was placed. Compact shoulders using the same equipment and procedures as used on the mainline pavement. The requirements of 401.16, except for the last four paragraphs, are waived.
Payment for compaction of the completed mainline
pavement and ramps is by
A Lot consists of an area of pavement placed
during a production day, including the shoulders. If less than 400 tons (400 metric tons) is
produced in a production day, then that production day is combined with the
next production day into a single
Within 48 hours after the pavement is placed,
obtain ten cores for each
For each
The Department will determine the pay factor for
each
Fill core holes by the next workday. Before filling, ensure the holes are dry and tack them with asphalt material conforming to 407.02. Properly compact the asphalt concrete used for filling the hole and leave it flush with the pavement.
TABLE 446.05-1
FOR LOTS WITH 3 COLD JOINT CORES
Mean of Cores[1] |
Pay Factor |
|
Surface Course |
Intermediate Course |
|
98.0% or greater |
[2] |
[2] |
97.0 to 97.9% |
0.94 |
[2] |
96.0 to 96.9% |
1.00 |
0.94 |
93.4 to 95.9% |
1.04 [4] |
1.00 |
92.4 to 93.3% |
1.00 |
1.00 |
91.4 to 92.3% |
0.98 |
1.00 |
90.4 to 91.3% |
0.90 |
0.94 |
89.4 to 90.3% |
0.80 |
0.88 |
88.4 to 89.3% |
[3] |
[3] |
Less than 88.4% |
[2] |
[2] |
[1] Mean of cores as percent of average MSG for the production day. |
||
[2] For surface courses, remove and replace. For other courses, the District will determine whether the material may remain in place. If the District determines the course should be removed and replaced, the Contractor will remove and replace this course and all courses paved on this course. The pay factor for material allowed to remain in place is 0.60. |
||
[3] The District will determine whether the material may remain in place. If the District determines the course should be removed and replaced, the Contractor will remove and replace this course and all courses paved on this course. The pay factor for such material allowed to remain in place is 0.70. [4] No incentive will be paid if any single cold joint core is less than 91.0%. |
TABLE 446.05-1
FOR LOTS WITH LESS THAN 3 COLD JOINT CORES
Mean of Cores[1] |
Pay Factor |
|
Surface Course |
Intermediate Course |
|
98.0% or greater |
[2] |
[2] |
97.0 to 97.9% |
0.94 |
[2] |
96.0 to 96.9% |
1.00 |
0.94 |
94.0 to 95.9% |
1.04 [4] |
1.00 |
93.0 to 93.9% |
1.00 |
1.00 |
92.0 to 92.9% |
0.98 |
1.00 |
91.0 to 91.9% |
0.90 |
0.94 |
90.0 to 90.9% |
0.80 |
0.88 |
89.0 to 89.9% |
[3] |
[3] |
Less than 89.0% |
[2] |
[2] |
[1] Mean of cores as percent of average MSG for the production day. |
||
[2] For surface courses, remove and replace. For other courses, the District will determine whether the material may remain in place. If the District determines the course should be removed and replaced, the Contractor will remove and replace this course and all courses paved on this course. The pay factor for material allowed to remain in place is 0.60. |
||
[3] The District will determine whether the material may remain in place. If the District determines the course should be removed and replaced, the Contractor will remove and replace this course and all courses paved on this course. The pay factor for such material allowed to remain in place is 0.70. [4] No incentive will be paid for lots where 3 joint cores are required to be taken but less than 3 cores are taken. |
446.06 Joints. Construct joints according to 401.17. Make a hot longitudinal joint between the mainline pavement lane and the adjoining shoulder and all ramps and the adjoining shoulders. If a hot longitudinal joint is specified between the mainline pavement lanes, the Contractor may construct a cold longitudinal joint between the mainline pavement lanes and the adjoining shoulders. Cold longitudinal joints in mainline pavement will be tested according to 446.05.
446.07 Basis of Payment. The Department will pay for accepted quantities, completed in place, at the contract prices, as modified by 446.05, as follows:
Item unit Description
446 Cubic Yard Asphalt Concrete
(Cubic Meter) Intermediate Course, Type ___
446 Cubic Yard Asphalt Concrete Surface
(Cubic Meter) Course, Type ___